If Companys keep out soucing their Maintenance, Whos going to do the Ad-Hoc Engine Changes? if all the Maintenace Facilitys are in Ireland or Eastern Europe Where will you do the Engine Change?
If no one has any Hangers where are you going to do your A-Checks? Outside?
What will happen if Boeing or Airbus bring out a Alert Service Bulletin that must be done within one week or before next Flight if all the Maintenace is Outsourced you wont get your whole Fleet done as quickly as you would like.
I dont belive Cheap Maintenance is the Answer.